Hi ,
How to achieve overviewmap in arcgis js 4.15 similar to arcgis js 3.x .
https://community.esri.com/t5/arcgis-api-for-javascript/move-arcgis-js-api-graphic-point/td-p/481350
The above link draws a point, line and polygon on map which is not related to overviewmap could please share the correct link.
Yes, because it's just mashing up two existing sample apps. Just get rid of the point and line graphics to test with the polygon.
I'm sorry, I don't have the time and ability to develop a solution for this in a reasonable amount of time. You're going to have to get creative on your own.